Surface water filtration device
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United States of America Patent
Stats
-
Jul 17, 2012
Grant Date -
Jun 30, 2011
app pub date -
Dec 30, 2009
filing date -
Dec 30, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A plate is positioned across an inlet to a catch basin and a filter strainer is inserted through an opening through the plate and into the basin. A tertiary filter completely surrounds the strainer and is suspended below the plate. Surface water flows through a primary grate that covers the catch basin, through the strainer and through the tertiary filter. The tertiary filter comprising fibrous filter media retained in a non-woven mesh fabric enclosure and the filter media is selected according to the type of contaminants that are to be removed.
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